[PATCH] spi/fsl-espi: Add missing cell-index OF property

espi does not look for a OF cell-index property which
makes the bus numbering dynamic only. This add an
optional cell-index.

Signed-off-by: Joakim Tjernlund <redacted>
---
 drivers/spi/spi-fsl-espi.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/spi/spi-fsl-espi.c b/drivers/spi/spi-fsl-espi.c
index 1d332e23f6ed..56b71c5e2f10 100644
--- a/drivers/spi/spi-fsl-espi.c
+++ b/drivers/spi/spi-fsl-espi.c

@@ -672,6 +672,14 @@ static int fsl_espi_probe(struct device *dev, struct resource *mem,
 
 	dev_set_drvdata(dev, master);
 
+	if (dev->of_node) {
+		u32 cell_index;
+
+		if (!of_property_read_u32(dev->of_node, "cell-index",
+					  &cell_index))
+			master->bus_num = cell_index;
+	}
+
 	master->mode_bits = SPI_RX_DUAL | SPI_CPOL | SPI_CPHA | SPI_CS_HIGH |
 			    SPI_LSB_FIRST | SPI_LOOP;
 	master->dev.of_node = dev->of_node;

-- 
2.13.6

Joakim,=0A=
=0A=
I am not the maintainer for this driver. Adding Mark Brown.=0A=
=0A=
York=0A=
=0A=
On 06/19/2018 09:23 AM, Joakim Tjernlund wrote:=0A=

 resource *mem,=0A=

 =0A=
 	dev_set_drvdata(dev, master);=0A=
 =0A=
+	if (dev->of_node) {=0A=
+		u32 cell_index;=0A=
+=0A=
+		if (!of_property_read_u32(dev->of_node, "cell-index",=0A=
+					  &cell_index))=0A=
+			master->bus_num =3D cell_index;=0A=
+	}=0A=
+=0A=
 	master->mode_bits =3D SPI_RX_DUAL | SPI_CPOL | SPI_CPHA | SPI_CS_HIGH |=

=0A=

 			    SPI_LSB_FIRST | SPI_LOOP;=0A=
 	master->dev.of_node =3D dev->of_node;=0A=
=0A=

=0A=

On Tue, Jun 19, 2018 at 04:29:35PM +0000, York Sun wrote:

Joakim,

I am not the maintainer for this driver. Adding Mark Brown.

York

On 06/19/2018 09:23 AM, Joakim Tjernlund wrote:

quoted

espi does not look for a OF cell-index property which
makes the bus numbering dynamic only. This add an

As documented in SubmittingPatches please send patches to the 
maintainers for the code you would like to change.  The normal kernel
workflow is that people apply patches from their inboxes, if they aren't
copied they are likely to not see the patch at all and it is much more
difficult to apply patches.